Finding the Fourth Proportional to 98,679.20, 148,020.20 and 32,119.68
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Solution
The fourth proportional to 98,679.20, 148,020.20 and 32,119.68 is: 48,179.98
Step by Step Solution
- Step 1: Write the proportion equation
98,679.20 : 148,020.20 = 32,119.68 : x - Step 2: Convert to fraction form
98,679.20/148,020.20 = 32,119.68/x - Step 3: Cross multiply
98,679.20x = 148,020.20 × 32,119.68 - Step 4: Simplify right side
98,679.20x = 4,754,361,457.54 - Step 5: Solve for x
x = 4,754,361,457.54/98,679.20 - Step 6: Final answer
x = 48,179.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.